I bought 100 TDA7297 and only worked 2

[soporte]

Posted on January 07, 2016 at 16:44

hi, boys.I bought 100 TDA7297 and ran only 2. I wonder if there might be fakes in the market for this Amp Model , or if there is another version that works with other than the proposed schematic datasheet . Someone has something similar happened ?. The number of the batch of every hundred devices is : SINGAPORE W88030938 . Thanks for the help and comments.

#tda7297

[Nickname1623_O]

Posted on January 08, 2016 at 07:05

Hi Salazar,

TDA7297 was very mature class AB device when ST was still named as SGS-Thomson.

according to your description , if your application circuitry (both of schematic and PCB layout)  had been proven with TDA7297 in the past , you should get some device that was not ST original .

to clarify it , it's better to contact with your dealer.

thanks

YT

[soporte]

Posted on January 09, 2016 at 01:24

Yes Mr Tao, I think so, this device was not original. I bought in ALIEXPRESS.  These TDA7297 I buy them in ALIEXPRESS, I thought it was serious sellers, but proved not original.Sabe you if another device that can replace pin to pin? or you can advise another similar amplifier, or Do you know where I can buy the original TDA7297 know? Thank you, Mr. Tao.

[Nickname1623_O]

Posted on January 11, 2016 at 07:07

hi Salazar,

you may find it in below link ,

http://www.st.com/web/catalog/sense_power/FM125/CL1503/SC979/PF65157?s_searchtype=partnumber

#

it's available in digikey and Mouser .

thanks ,

YT